961390 has 16 divisors (see below), whose sum is σ = 1746432. Its totient is φ = 381024.

The previous prime is 961339. The next prime is 961393. The reversal of 961390 is 93169.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (961393) by changing a digit.

961390 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 892 + ... + 1648.

It is an arithmetic number, because the mean of its divisors is an integer number (109152).

2⁹⁶¹³⁹⁰ is an apocalyptic number.

961390 is a deficient number, since it is larger than the sum of its proper divisors (785042).

961390 is a wasteful number, since it uses less digits than its factorization.

961390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 891.

The product of its (nonzero) digits is 1458, while the sum is 28.

The square root of 961390 is about 980.5049719405. The cubic root of 961390 is about 98.6960716067.

The spelling of 961390 in words is "nine hundred sixty-one thousand, three hundred ninety".